Tumblr always seemed interesting but still essentially pointless. Twitter had miniblogging covered, especially since you could get instant feedback for whatever you posted (since Tumblr lacks comments unless you add Disqus) and for anything more involved, there were blogs.
However, since the advent of the iPhone and a fantastic app called Tumblrette, tumblogging is appealing again because now (with the exception of video from the iPhone) it’s truly mobile. I mean you don’t have to fight with it. Tumblrette makes it fast and simple. It’s lifeblogging, scrapbook-style, not necessarily to inundate your friends with or to cover absolutely everything, but just the choicest bits, a kind of stream-of-consciousness flow of the best scraps of your ideas and inspirations without demanding or expecting a response from anyone, that may make sense as a whole only to yourself.
Of course you can assemble your tumblog for an audience as well, and turn it into “blogging lite” by adding all sorts of categories, feeds, and hacks. But that seems to make its purpose somewhat moot again, and the question arises, if you’re filling your tumblog with all your feeds from everywhere, aren’t you just fluffing up your meager content, the online equivalent of padding an essay with fat margins and triple spacing? I say keep tumblogs lean and meaty in order to retain their potential use and impact. This also allows you to feed them into other services without annoying repeats of other feeds.
In any case, I’ll be trying this for a while. We’ll see how it goes.